1959. 2015-05-22T13:40:18Z. 2015-06-03T22:06:11Z. Fortier, Y. O. (Yves Oscar), 1914-. Geological Survey of Canada. English. cartographic image. Public. Nunavut and Devon Island.
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1959. 2012-09-27T15:54:59Z. 2013-03-18T22:20:15Z. Gravenor, C. P. Geological Survey of Canada. English. Public. Ontario, Port Hope Region, Oshawa Region, Whitby Region, Peterborough Region, and Lindsay Region.
1959. 2015-05-26T17:53:22Z. 2015-06-09T22:07:14Z. Craig, B. G. Geological Survey of Canada. English. cartographic image. Public. Saskatchewan and Battleford Region. Cenozoic and From 65 million years ago.